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E-Sky › How do these end point numbers look for the HBK2?
02-11-2008 01:31 AM  10 years agoPost 1
racin06

rrKey Veteran

Indianapolis, Indiana

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Well, my second question of the evening. Just to let you know, this is my first CP heli...hence all of these questions.

I just finished setting up the head per the Finless Bob videos and moved onto attempting to get rid of CCPM interactions. Below are the final trim and Travel Adjust (end point) percentages for my DX7 in order to achieve a level swash plate at mid, full positive and full negative stick per Finless Bob (using a small bubble level on flybar paddle).

Elevator Trim: Down 6 clicks
Aileron Trim: Left 6 clicks

Travel Adjust Elevator -

Down 78%
Up 75%

Travel Adjust Aileron -

Left 103%
Right 93%

Everything seems to be working great with everything level at mid-stick and there is no binding when moving the sticks all around and to ther extremes. Do these numbers look OK? Thanks.

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02-11-2008 01:42 AM  10 years agoPost 2
tryan02

rrProfessor

Canton, Missouri

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a programmable radio can hide poor setup. I dont have any trim used on my radio. I adjust it mechanically first. Besides I dont fly well enough to know if its perfect from 0 to full pitch+/-. And I dont believe the E-Flite servos are good enough for perfection anyway.

I just do a basic setup CG first then eyeball level swash at servo center check blade balance then their pitch in Idleup 0 midstick and I got 10+/- at the ends I also do flybar paddles the same way. Then fly and adjust blade tracking to near perfect then adjust three swash linkages for a stable hover never touching the trims. I find this method will be more than fine for any normal to sport flying.

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02-11-2008 01:50 AM  10 years agoPost 3
slider46

rrProfessor

Ocala Florida

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I agree with the tryan You should set it up completely mechanically using absolutely no trim at all... that is why the servo rods are adjustable.. Sorry but it looks like you need to head back to the shop with it... Also make sure your balance is perfect too... get your mechanical setup right first......

Tom..... No "D" flying....

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02-11-2008 01:53 AM  10 years agoPost 4
tryan02

rrProfessor

Canton, Missouri

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Of course you agree I learned it from you.

And you were dead on.

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02-11-2008 01:59 AM  10 years agoPost 5
tmaxx26power

rrApprentice

South Dakota

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Exactly as tryan and slider have stated perfect mechanical setup is where it begins. On the bonus you're getting close tho:

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02-11-2008 02:03 AM  10 years agoPost 6
Sgt Heli

rrVeteran

Remlap, Al USA

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It was a real eye opener when I realized I had been fighting a heli that was real tail heavy. The setup is critical for a fun flying heli. I really try to get it mechanically dead on and all balanced. Makes my fair ablility a little better.

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02-11-2008 02:07 AM  10 years agoPost 7
slider46

rrProfessor

Ocala Florida

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You will be amazed at how good of a pilot you really are when the heli is set up right..... It just makes life easier....

Tom..... No "D" flying....

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02-11-2008 02:39 AM  10 years agoPost 8
racin06

rrKey Veteran

Indianapolis, Indiana

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I have everything mechanically set up...servo arms centered and swash level at mid stick with no trim. However, at full positive and negative pitch, the swash isn't level...hence I'm getting CCPM interactions. Do I need to adjust the end points to level the swash at full positive and negative pitch or should I not be concerned about these interactions? I'm just following Finless' instructions.

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02-11-2008 02:44 AM  10 years agoPost 9
slider46

rrProfessor

Ocala Florida

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Do not worry about the interaction, it will only effect your flying when you get to inverted and hard 3D. using trim will cause even worse problems when your inverted too...

Tom..... No "D" flying....

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02-11-2008 02:46 AM  10 years agoPost 10
fenderstrat

rrProfessor

Aston,Pa

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yes if everything is level at mid stick and you are still getting interaction....adjust the endpoints.....but dont adjust more than 2 servos or it throws off your travel..........see if you can get the swash level by adjusting 1 servo first,if not try 2 if that wont do it....something is off

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02-11-2008 02:58 AM  10 years agoPost 11
racin06

rrKey Veteran

Indianapolis, Indiana

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Boy...one of you says not to worry about the interactions and the another says to adjust the end points.

By the way, I'm getting interactions on both elevator and aileron; therefore, I would have to adjust the end points on the elevator and aileron servo.

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02-11-2008 03:12 AM  10 years agoPost 12
tmaxx26power

rrApprentice

South Dakota

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I prefer to set my helis up with no interaction right from the beginning.

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02-11-2008 03:12 AM  10 years agoPost 13
tryan02

rrProfessor

Canton, Missouri

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that darn fender is good people but hes slowly getting too advanced for us hoverers.
Do not worry about the interaction, it will only effect your flying when you get to inverted and hard 3D.
you gettin any flyin in fender its been terrible here for weeks?

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02-11-2008 03:13 AM  10 years agoPost 14
slider46

rrProfessor

Ocala Florida

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What servos are you using??? You might need to change them out to get rid of the interaction .... if the interaction is at full throw on the stick don't worry about it until you start stick banging 3D flying....

Tom..... No "D" flying....

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02-11-2008 03:16 AM  10 years agoPost 15
fenderstrat

rrProfessor

Aston,Pa

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well its obviously bothering you or you wouldn't post about it....right???..but actually it wont affect your flying till you are doing extreme stuff or inverted,as slider said.....but as long as you are there......dial it out

edit....its windy as HE$# here and cold,with light snow,no flying........dont confuse my flying skills with set up knowledge...my helis fly way better than I can pilot them

Compass helis Support Team
PerformancePlusRC field rep
Mini Titan/SE
TEAM KBDD

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02-11-2008 03:17 AM  10 years agoPost 16
tryan02

rrProfessor

Canton, Missouri

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I'm sticking by my guns screw it at full deflection. I dont think my S75 servos could handle full travel anyway.
You said it was your first cp heli I assumed it was the RTF with esky servos.

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02-11-2008 03:19 AM  10 years agoPost 17
tmaxx26power

rrApprentice

South Dakota

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It will also effect full throttle climb-outs.

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02-11-2008 03:19 AM  10 years agoPost 18
racin06

rrKey Veteran

Indianapolis, Indiana

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Well, at this point, I'm not too concerned about 3D flight. I'm more concerned about being able to perform some aggressive sport flying. This is my first CP heli; however, I have been flying the HBFP for a year now and as you can see from the videos below, I'm beyond the hovering stage.

http://youtube.com/watch?v=4WJ-mO2IXNY

http://youtube.com/watch?v=5KMqYcnSb3c

Anyway, I just want to get it right from the start. By the way, how much would be too much adjusment of the end points?

Regarding my servos...HS-55s on the swash and HS-50 on the tail. All are brand new.

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02-11-2008 03:24 AM  10 years agoPost 19
slider46

rrProfessor

Ocala Florida

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Try your stick at full throttle and move your cyclic around and make sure nothing is binding causing your interaction. I have set up alot of helis and never had interaction like your talking about... subtrims is the way to take them out if your really concerned....

Tom..... No "D" flying....

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02-11-2008 03:26 AM  10 years agoPost 20
tryan02

rrProfessor

Canton, Missouri

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Take a look at dougsRC vids he does some great sport flying and low inverted with a stock radio. I was being a little sarcastic when I said hoverers sorry for the confusion.

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